Dotty

Fix "Typer regression for sum type derivation in paoloboni/binance-scala-client" #37967

Job	Run time
test	23m 35s
community_build_a	43m 12s
test_windows_fast	10m 42s
community_build_b	52m 46s
community_build_c	46m 52s
build-sdk-package / build	8m 53s
test_windows_full	0s
test-msi-package	0s
build-msi-package	-7s
build-chocolatey-package / build	49s
test-chocolatey-package	0s
publish_release	0s
	3h 6m 42s

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